Yes you can, that is what I did.
However, I got married after I had submitted my application. In your case, it is different because you were already married beforehand.
But still, according to the message I got from IRCC you can add her even if she is listed as non-accompanying in the original application:
See the email from IRCC:
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Thank you for contacting Immigration, Refugees and Citizenship Canada (IRCC).
If you are the principal applicant of a permanent residence application already in process, you could add your spouse or common-law partner, dependent children, and their dependent children to your application, even if they were listed as a non-accompanying dependant in the initial application.
To do so, we invite you to send your add-on request through the
IRCC webform available on our website. You can attach the following forms and documents in the field reserved to that effect:
- A new Generic Application Form for Canada (IMM 0008) with supporting documents,
- (If applicable) A Schedule A - Background/Declaration (IMM 5669) form,
- (If applicable) An Additional Dependants/Declaration (IMM 0008DEP) form,
- (If applicable) A signed Additional Family Information (IMM 5406) form,
- A copy of the birth certificate, marriage certificate or proof of common-law relationship,
- A copy of the family member's valid passport,
- Police certificates for all countries where the family member over the age of 18 has lived for more than 6 months since turning 18,
- A letter of explanation, and
- If applicable, the proof of payment.
Useful tips
- If you need information to fill out the forms, please consult the Fill out the forms section of the instruction guide found in the application kit that you have initially used to apply.
- If the newly eligible family member is a spouse, common-law partner or dependent child who is already a permanent resident or Canadian citizen, only a copy of the birth certificate, marriage certificate or proof of common-law relationship and a letter of explanation are required.
- It may be impossible to add a member of your family to the application if a final decision has already been made.
We hope you will find this information helpful.
Your add-on request will be evaluated by the responsible office. You will be contacted when a decision will be made or if further information is required.
We hope the information provided is helpful in assisting you with your enquiry.
We would also like to suggest the following online services that might be helpful to you with any immigration, refugee and/or citizenship future requests:
Sincerely,
Paulo, agent 4336
Immigration, Refugees and Citizenship Canada
https://www.canada.ca/en/services/immigration-citizenship.html
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I hope this helps!